Distinctive but functionally convergent song phenotypes characterize two new allopatric species of the Chrysoperla carnea-group in Asia, Chrysoperla shahrudensis sp. nov. and Chrysoperla bolti sp. nov. (Neuroptera: Chrysopidae)
2018
Chrysoperla shahrudensis sp. nov. is discovered in northern Iran, co-occurring with at least five other cryptic species of the Chrysoperla carnea-group. It is distinguished by the volley period and tonality of its courtship duetting song. Another Asian species from alpine meadows of northern Kyrgyzstan, previously C. ‘adamsi-K’ but here named Chrysoperla bolti sp. nov., has a song distinct from but convergent with both C. shahrudensis and North American Chrysoperla adamsi. Coordinated duets can be established in the laboratory between individuals of C. shahrudensis and recorded songs of either C. bolti or C. adamsi. Such functional song equivalence in distinct allopatric species suggests that repeated episodes of parallel speciation can drive the origin of cryptic species diversity in lacewings. Morphology, life history, and ecology of larvae and adults of C. shahrudensis and C. bolti are then formally described. Adding C. shahrudensis to a large mitochondrial DNA data set for ≈ 21 species shows it to be similar to neither C. adamsi nor C. bolti, further supporting independent, convergent evolution of song rather than song similarity due to relationship. Although C. bolti and C. shahrudensis are both from Asia and share some basic temporal song features, the two taxa are distinct, allopatric biological species. www.zoobank.org/urn:lsid:zoobank.org:pub:D9B7BDC9-6C09-468B-A6B-D378628EC557
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